智能仪器设计 基于dsp的温度控制系统

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1、智能仪器课程设计基于DSP的温度控制系统的设计１７目录摘要···········································································································································21设计目的·················································································································

2、··············32设计要求·······························································································································33设计内容·······························································································································33.1理论依

3、据················································································································33.2信号特征分析·············································································································43.3方案设计···············································

4、··································································43.4器件选１７型·················································································································53.5系统设计··························································································

5、·····················104设计感想······························································································································16１７摘要根据题目要求设计基于DSP的温度控制系统。通过选择合适的DSP芯片型号，传感器和外围电路，如复位电路，电源电路，时钟电路，信号采集电路等，实现对温度信号的采集，信号处理及温度的控制。关键词：DSP芯片；温度信号采集；温度传感器；时钟电路1设计目的通过选择

6、合适的DSP芯片型号，传感器和外围电路，如复位电路，电源电路，时钟电路，信号采集电路等，实现对温度信号的采集，信号处理及温度的控制。2设计要求控制室内温度恒定为设定值（±3℃），室内温度采样点为5个点，要求系能对室内温度进行实时采集、处理，并根据设定值通过空调设备进行相应控制（制冷或加热）。根据设计题目的要求，选择确定DSP芯片型号、温度传感器型号，完成系统硬件设计，实现对温度数据的实时采集和处理。3设计内容3.1理论依据（1）温度是过程控制中主要的被控量，对温度信号的采集与处理已经广泛应用于工业领域和其他的领域中。目前的温度控制系统多采用单片机进行控制，由于单片机的

7、运算速度慢，在处理一些实时性强、数据运算量大的控制系统过程中，难以实现实时控制。随着微处理器的发展，数字信号处理器（DSP）以其强大的运算能力，逐步成为控制领域的主流选择。TI公司的TMS320LF240型DSP微控制器以其处理能力强，外设功能模块集成度高及存储器容量大等１７特点广泛应用于数字化控制与通信领域，可满足对信号的快速、精确和实时处理。（1）基于DSP设计的温度控制器利用DSP强大的高速运算能力，以及其片内集成的丰富的控制外围部件和电路,从而简化了电路的硬件设计,可以实现各种控制算法和控制策略,并通过异步串行通信接口来读取用户所需要的数据,